# Fame.am profile — machine-readable export
# Canonical URL: https://fame.am/person/sigismund-ii-augustus
# Generated: 2026-08-31T20:48:01.790Z

schema: https://schema.org/Person
url: "https://fame.am/person/sigismund-ii-augustus"
name: "Sigismund II Augustus"
slug: "sigismund-ii-augustus"
description: "The last male Jagiellonian and the architect of the Polish–Lithuanian Commonwealth. His reign is remembered as the apex of Poland's Golden Age — and for the scandalous marriage to Barbara Radziwiłł that defied his mother and enraged the court."
tagline: "King of Poland and Grand Duke of Lithuania"
image: "https://commons.wikimedia.org/wiki/Special:FilePath/Cranach_the_Younger_Sigismund_II_Augustus.jpg"
gender: "male"
category:
  name: "Politicians"
  slug: "politicians"
profileType:
  name: "Politician"
  slug: "politician"
birthDate: "1520-08-01"
deathDate: "1572-07-07"
livingStatus: "DECEASED"
scores:
  popularity:           56.2
  momentum:             0
  historical:           23.55529066666667
  currentAttention:     0
  sourceConfidence:     60
  profileCompleteness:  60
  trendDirection:       "STABLE"
ranks:
  global:   null
  country:  null
  category: null
tags:
  - name: "Politicians"
    slug: "politicians"
  - name: "Founder"
    slug: "founder"
  - name: "Founders"
    slug: "founders"
  - name: "Politics"
    slug: "politics"
  - name: "Early Modern Era"
    slug: "early-modern-era"
sources:
  - url: "https://www.wikidata.org/wiki/Q54058"
    title: "Wikidata"
    type:  "WIKIDATA"
  - url: "https://en.wikipedia.org/wiki/Sigismund_II_Augustus"
    title: "Wikipedia"
    type:  "WIKIPEDIA"
  - url: "https://pantheon.world/profile/person/Sigismund%20II%20Augustus"
    title: "Pantheon 2.0"
    type:  "DATABASE"
  - url: "https://arz.wikipedia.org/wiki/%D8%B2%D8%AC%D9%85%D9%88%D9%86%D8%AA_%D8%A7%D9%84%D8%AA%D8%A7%D9%86%D9%89_%D8%A7%D9%88%D8%AC%D8%B3%D8%AA"
    title: "زجمونت التانى اوجست"
    type:  "WIKIPEDIA"
  - url: "https://bat_smg.wikipedia.org/wiki/%C5%BD%C4%ABg%C4%97monts_Augusts"
    title: "Žīgėmonts Augusts"
    type:  "WIKIPEDIA"
  - url: "https://be_x_old.wikipedia.org/wiki/%D0%96%D1%8B%D0%B3%D1%96%D0%BC%D0%BE%D0%BD%D1%82_%D0%90%D1%9E%D0%B3%D1%83%D1%81%D1%82"
    title: "Жыгімонт Аўгуст"
    type:  "WIKIPEDIA"
  - url: "https://be.wikipedia.org/wiki/%D0%96%D1%8B%D0%B3%D1%96%D0%BC%D0%BE%D0%BD%D1%82_II_%D0%90%D1%9E%D0%B3%D1%83%D1%81%D1%82"
    title: "Жыгімонт II Аўгуст"
    type:  "WIKIPEDIA"
  - url: "https://bg.wikipedia.org/wiki/%D0%97%D0%B8%D0%B3%D0%BC%D1%83%D0%BD%D1%82_II_%D0%90%D0%B2%D0%B3%D1%83%D1%81%D1%82"
    title: "Зигмунт II Август"
    type:  "WIKIPEDIA"
  - url: "https://br.wikipedia.org/wiki/Sigismund_II_Aogust"
    title: "Sigismund II Aogust"
    type:  "WIKIPEDIA"
  - url: "https://ca.wikipedia.org/wiki/Segimon_II_August"
    title: "Segimon II August"
    type:  "WIKIPEDIA"
  - url: "https://da.wikipedia.org/wiki/Sigismund_2._August_af_Polen"
    title: "Sigismund 2. August af Polen"
    type:  "WIKIPEDIA"
  - url: "https://de.wikipedia.org/wiki/Sigismund_II._August"
    title: "Sigismund II. August"
    type:  "WIKIPEDIA"
  - url: "https://el.wikipedia.org/wiki/%CE%A3%CE%B9%CE%B3%CE%B9%CF%83%CE%BC%CE%BF%CF%8D%CE%BD%CE%B4%CE%BF%CF%82_%CE%92%CE%84_%CE%91%CF%8D%CE%B3%CE%BF%CF%85%CF%83%CF%84%CE%BF%CF%82_%CF%84%CE%B7%CF%82_%CE%A0%CE%BF%CE%BB%CF%89%CE%BD%CE%AF%CE%B1%CF%82"
    title: "Σιγισμούνδος Β΄ Αύγουστος της Πολωνίας"
    type:  "WIKIPEDIA"
  - url: "https://eo.wikipedia.org/wiki/Sigismondo_la_2-a_(Pollando-Litovio)"
    title: "Sigismondo la 2-a (Pollando-Litovio)"
    type:  "WIKIPEDIA"
  - url: "https://es.wikipedia.org/wiki/Segismundo_II_Augusto_Jagell%C3%B3n"
    title: "Segismundo II Augusto Jagellón"
    type:  "WIKIPEDIA"
  - url: "https://et.wikipedia.org/wiki/Zygmunt_II_August"
    title: "Zygmunt II August"
    type:  "WIKIPEDIA"
  - url: "https://eu.wikipedia.org/wiki/Sigismundo_II.a_Poloniakoa"
    title: "Sigismundo II.a Poloniakoa"
    type:  "WIKIPEDIA"
  - url: "https://fa.wikipedia.org/wiki/%D8%B3%DB%8C%DA%AF%DB%8C%D8%B3%D9%85%D9%88%D9%86%D8%AF_%D8%AF%D9%88%D9%85_%D8%A2%DA%AF%D9%88%D8%B3%D8%AA%D9%88%D8%B3"
    title: "سیگیسموند دوم آگوستوس"
    type:  "WIKIPEDIA"
  - url: "https://fi.wikipedia.org/wiki/Sigismund_II"
    title: "Sigismund II"
    type:  "WIKIPEDIA"
  - url: "https://fr.wikipedia.org/wiki/Sigismond_II_Auguste"
    title: "Sigismond II Auguste"
    type:  "WIKIPEDIA"
  - url: "https://gl.wikipedia.org/wiki/Sexismundo_II_Augusto_de_Polonia"
    title: "Sexismundo II Augusto de Polonia"
    type:  "WIKIPEDIA"
  - url: "https://he.wikipedia.org/wiki/%D7%96%D7%99%D7%92%D7%9E%D7%95%D7%A0%D7%98_%D7%94%D7%A9%D7%A0%D7%99_%D7%90%D7%95%D7%92%D7%95%D7%A1%D7%98%2C_%D7%9E%D7%9C%D7%9A_%D7%A4%D7%95%D7%9C%D7%99%D7%9F"
    title: "זיגמונט השני אוגוסט, מלך פולין"
    type:  "WIKIPEDIA"
  - url: "https://hu.wikipedia.org/wiki/II._Zsigmond_%C3%81gost_lengyel_kir%C3%A1ly"
    title: "II. Zsigmond Ágost lengyel király"
    type:  "WIKIPEDIA"
  - url: "https://hy.wikipedia.org/wiki/%D5%8D%D5%AB%D5%A3%D5%AB%D5%A6%D5%B4%D5%B8%D6%82%D5%B6%D5%A4_II_%D5%95%D5%A3%D5%B8%D5%BD%D5%BF%D5%B8%D5%BD"
    title: "Սիգիզմունդ II Օգոստոս"
    type:  "WIKIPEDIA"
  - url: "https://id.wikipedia.org/wiki/Zygmunt_II_August"
    title: "Zygmunt II August"
    type:  "WIKIPEDIA"
  - url: "https://pl.wikiquote.org/wiki/Zygmunt_II_August"
    title: "Wikiquote"
    type:  "WEBSITE"
  - url: "https://cs.wikipedia.org/wiki/Zikmund_II._August"
    title: "Zikmund II. August"
    type:  "WIKIPEDIA"
  - url: "https://ar.wikipedia.org/wiki/%D8%B2%D8%BA%D9%85%D9%88%D9%86%D8%AA_%D8%A7%D9%84%D8%AB%D8%A7%D9%86%D9%8A_%D8%A3%D9%88%D8%BA%D8%B3%D8%AA"
    title: "زغمونت الثاني أوغست"
    type:  "WIKIPEDIA"

# bio (long form, separated for readability)
bio: |
  Sigismund II Augustus was the only son of Sigismund I the Old and Bona Sforza to survive infancy, groomed from birth to inherit. Crowned co-ruler in 1529 while his father still lived, he succeeded fully in 1548. His first wife, Elizabeth of Austria, died at eighteen in 1545. He then married his mistress Barbara Radziwiłł over his mother's fury and the nobility's opposition — she died five months after coronation. A third marriage to Catherine of Austria also produced no surviving heirs. He maintained peace with neighbors save for the Northern Seven Years' War over Baltic trade, built Poland's first navy and postal service, and patronized a cultural flowering. In 1569 he oversaw the Union of Lublin, merging Poland and Lithuania into the Commonwealth. With his death in 1572 and his sister Anna's in 1596, the Jagiellonian line ended.